/////////////////////////////////////////////////////////////////////////////
// Original code from libhdfs3. Copyright (c) 2013 - 2014, Pivotal Inc.
// All rights reserved. Author: Zhanwei Wang
/////////////////////////////////////////////////////////////////////////////
//  Modifications by Kumo Inc.
// Copyright (C) Kumo inc. and its affiliates.
// Author: Jeff.li lijippy@163.com
// All rights reserved.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.
//



#pragma once


#include <kmhdfs/client/file_status.h>
#include <vector>

namespace Hdfs {
namespace Internal {
class FileSystemImpl;
}

class DirectoryIterator {
public:
    DirectoryIterator();
    DirectoryIterator(Hdfs::Internal::FileSystemImpl * const fs,
                      std::string path, bool needLocations);
    DirectoryIterator(const DirectoryIterator & it);
    DirectoryIterator & operator = (const DirectoryIterator & it);
    bool hasNext();
    FileStatus getNext();

private:
    bool getListing();

private:
    bool needLocations;
    Hdfs::Internal::FileSystemImpl * filesystem;
    size_t next;
    std::string path;
    std::string startAfter;
    std::vector<FileStatus> lists;
};

}
